Materials Literature
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We report the first complete determination, using surface x-ray diffraction, of the surface structure of ${\mathrm{TiO}}_{2}$-terminated ${\mathrm{SrTiO}}_{3}(001)$, both at room temperature in vacuum, and also hot, under typical conditions used for thin film growth. The cold structure consists of a mixture of a ($1\i…
Chains and Averages of Polymers: An Overview Introduction How Big is Big? Linear and Branched Polymers and Homo- and Copolymers Addition, Condensation, and Natural Polymers Polymer Nomenclature Positional, Stereo, and Geometrical Isomerism Molecular Weight by End Group Analysis Molecular Weight Averages The Binomial D…
In the present work, nano-ZrO2∕CoSb3 composites were fabricated by milling ZrO2 and CoSb3 powders and hot pressing at different sintering temperatures. For the prepared compacts, the phase purity, microstructure, and temperature-dependent thermoelectric properties were characterized. The effect of nano-ZrO2 dispersion…
Ternary and quaternary cubic c-AlxIn1-xN/GaN and c-AlxGayIn1-x-y/GaN heterostructures lattice-matched to c-GaN on freestanding 3C-SiC substrates were grown by plasma-assisted molecular beam epitaxy. The c-AlxGayIn1-x-y alloy permits the independent control of band gap and lattice parameter. The ternary and quaternary…
Direct identification of the glass transition: Growing length scale and the onset of plasticity, Aharonov, E., Bouchbinder, E., Hentschel, H. G. E., Ilyin, V., Makedonska, N., Procaccia, I., Schupper, N.
A perylene bisimide derivative bearing two phenyl substituents with chiral solubilizing alkyl chains at the imide N atoms has been synthesized, and its self-assembly properties in solution and condensed phase have been investigated. Temperature-dependent CD spectra revealed the coexistence of two different kinds of ch…
Silica nanoparticles for controlled release applications have been produced by the reaction of tetramethylorthosilicate (TMOS) inside the water droplets of a water-in-oil microemulsion, under both acidic (pH 1.05) and basic (pH 10.85) conditions. In-situ FTIR measurements show that the addition of TMOS to the microemu…
As sensors become integrated in more applications, interest in magnetostrictive sensor technology has blossomed. Magnetostrictive sensors take advantage of the efficient coupling between the elastic and magnetic states of a material to facilitate sensing a quantity of interest. Magnetic and magnetostrictive theory per…
The dynamics of phase transformation due to homogeneous nucleation has long been analyzed using the classic Kolmogorov-Johnson-Mehl-Avrami (KJMA) theory. However, the dynamics of phase transformation due to heterogeneous nucleation has not been studied systematically even though it is vitally important technologically…
The electronic and magnetic properties of the cubic double perovskite ${\mathrm{Ba}}_{2}\mathrm{Na}\mathrm{Os}{\mathrm{O}}_{6}$ were examined by performing first-principles density functional theory calculations and analyzing spin-orbit coupled states of an ${\mathrm{Os}}^{7+}$ $({d}^{1})$ ion at an octahedral crystal…
The tip artifact in atomic force microscopy (AFM) observations of InAs islands was evaluated quantitatively. The islands were grown in the Stranski-Krastanow mode of molecular beam epitaxy. The width and height of the islands were determined using transmission electron microscopy (TEM) and AFM. The average $[\bar{1}10…
The pressure-driven tetragonal-to-monoclinic phase transition in CaWO 4 and related scheelite-structured orthotungstates is analysed in terms of spontaneous strains. Based upon our previous high-pressure X-ray diffraction results and the Landau theory, it is suggested that the scheelite-to-fergusonite transition is of…
The detailed investigation of electronic and magnetic properties of polymeric coordination materials with accurate ab initio quantum mechanical methods is often computationally extremely demanding because of the large number of atoms in the unit cell. Moreover, usually the available structural data are insufficient or…
A phenomenological theory of luminescence properties of one-dimensional resonant photonic crystals is developed within the framework of classical Maxwell equations with fluctuating polarization terms representing non-coherent sources of emission. The theory is based on an effective general approach to determining line…
Electron-positron momentum distributions measured by the coincidence Doppler broadening method can be used in the chemical analysis of the annihilation environment, typically a vacancy-impurity complex in a solid. In the present work, we study possibilities for a quantitative analysis, i.e., for distinguishing the ave…
Deuterium retention and blistering in the near-surface region of tungsten exposed to high fluences (up to 10 27 D m −2 ) of high flux (10 22 D + m −2 s −1 ) and low energy (38 eV) deuterium plasma were examined with scanning electron microscopy, focused ion beam and thermal desorption spectroscopy (TDS). Two kinds of…
The type III ribulose-1,5-bisphosphate carboxylase-oxygenase (RuBisCO) present in the archaeon Thermococcus kodakaraensis was found to participate in adenosine 5'-monophosphate (AMP) metabolism, a role that is distinct from that of classical RuBisCOs of the Calvin-Benson-Bassham cycle. Genes annotated as thymidine pho…
Angiogenesis is essential for the development of malignant tumors and provides important targets for tumor diagnosis and therapy. To noninvasively assess the angiogenic profile of tumors, novel alpha(v)beta(3) integrin-targeted ultrasmall superparamagnetic iron oxide particles (USPIOs) were designed and their specific…
Amorphous silica is increasingly used in diagnostic and biomedical research because of its ease of production and relatively low cost. It is generally regarded as safe and has been approved for use as a food or animal feed ingredient. Recent literature reveals that amorphous silica may present toxicity concerns at hig…
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